The Mabilo Property hosts mineralization of copper-gold-magnetite skarn type. Skarn describes a rock dominated by calc-silicate or calcium- magnesium silicate minerals formed by metasomatic replacement of carbonate-bearing rocks rich in calcium and magnesium. Skarn forms as a result of interaction of carbonate- bearing host rock with hydrothermal fluids derived from an igneous intrusion.

Skarn copper-gold-magnetite is considered to be the primary target at the Mabilo Property. While the occurrence of copper-gold-magnetite skarn may suggest some potential for porphyry coppergold mineralization, no indication of this type of mineralization has been encountered and no porphyritic intrusions have been identified. There may also be potential for epithermal gold mineralization, but this is also a secondary target; pyrite-quartz overprint of the known skarn is of epithermal style, but is not known to be gold-mineralized.

The geology of the Philippines comprises a complex sequence of juxtaposed and superimposed island arcs formed by multiple episodes of subduction, arc-magmatism, ocean basin closure, collision, ophiolite accretion and lateral translation of terranes through regional strike slip faulting, notably the 1,500 km long sinistral strike slip Philippine Fault System ('PFS').

Gold mineralization in the Philippines occurs predominantly within deposits of porphyry copper-gold and epithermal gold (-silver) style. Late Miocene-Pliocene co ........

Open pit mining is the method selected for the Mabilo mining operation. Pit optimization has demonstrated that application of this method results in favorable project economics. The method deploys conventional drilling, blasting, loading and hauling techniques to excavate and transport ore and waste materials.

Mining activities also include clearing of land, stripping and storage of topsoil, ore rehandle, pit dewatering, dust suppression and dump rehabilitation. All activities will be performed by mining contractors except for grade control, mine planning and mine management being undertaken by the mine owners.

Ultimate Pit Design
Some features of note:
• The deepest part of the pit is at -100 m RL, with a pit ramp exit at 115 m RL, making the pit 215 m deep.
• Ramps are located in the eastern wall at a gradient of 10%, utilizing switchbacks, except in the final single-lane sections.
• Single lane ramps with a maximum gradient of 12.5% were used to access the deepest parts of the orebody with minimal waste mining. The northern single lane ramp runs from 55 m RL to -0 m RL, or 55 meters depth, and the southern single lane ramps runs from - 30 m RL to -95 m RL, or 65 meters depth. These areas are located in fresh rock, below the Tumbaga Weathered geotechnical contact.
• Goodbye cuts are mined at 10 m width from the last level with bench access.
• Switchbacks have been located in line with catchment berms to minimize the w ........

The treatment plant design incorporates the following unit process operations:

- Single stage open circuit primary crushing to produce a crushed product size of 80% passing (P80) 120 mm.

- A crushed ore surge bin with a nominal capacity of 120 t. Surge bin overflow will be conveyed to a dead stockpile of 20,000 tonnes. Ore from the dead stockpile will be reclaimed by front end loader (FEL) to feed the mill during periods when the crushing circuit is off-line.

- Grinding of ore in a SAG mill circuit in closed circuit with hydrocyclones to produce a P80 grind size of 90 µm.

- Bulk sulphide flotation to recover copper sulphides and gold bearing pyrite.

- Two-stage cleaner flotation to recover copper sulphides into a copper concentrate and pyrite into a product for sale.

- Concentrate thickening and pressure filtration to produce a copper concentrate filter cake.

- Pyrite thickening and either pressure filtration ........